Canon Mb2140 Service Tool -

Before the Service Tool can communicate with your MB2140, the printer must be in a special "Service Mode." Without this, the software will not recognize the device. YouTube·thecollegepicker

Seven or more alternating green and amber blinks often indicate a waste ink error. Canon Mb2140 Service Tool

The is the specialized software required to reset these internal counters and restore your printer's functionality. What is the Canon MB2140 Service Tool? Before the Service Tool can communicate with your